Should I have taken for them?

You were just trying to be a good person, so hats off to you. But these sound like difficult people. All in all, if they wanted their papers, they should have gone to cl. who cares how busy they are? It's their responsibility. And you shouldn't worry about them being mad at you, you were just doing what they asked you to. They are lazy and hypocritical, so who cares what they think